The new isotopes258105,257105,254Lr and253Lr

@article{Hessberger1985TheNI,
  title={The new isotopes258105,257105,254Lr and253Lr},
  author={Fritz Peter Hessberger and Gottfried M{\"u}nzenberg and S. Hofmann and Y. K. Agarwal and Karola Poppensieker and Willibrord Reisdorf and K.-H. Schmidt and J. R. H. Schneider and William F. Schneider and H. J. Sch{\"o}tt and Peter Armbruster and Benjamin A. Thuma and C. C. Sahm and D. Vermeulen},
  journal={Zeitschrift f{\"u}r Physik A Atoms and Nuclei},
  year={1985},
  volume={322},
  pages={557-566}
}
Evaporation residues from the heavy-ion fusion reaction50Ti on209Bi were investigated. They were separated from the projectile beam by the velocity filter SHIP and identified after implantation into an array of position-sensitive surface-barrier detectors by analyzing theirα-decay chains. Spontaneous fission was also observed.Four newα emitters,258105 (T1/2=4.4−0.6+0.9s),257105 (T1/2= 1.4−0.3+0.6s),254Lr (T1/2= 13−2+3s), and253Lr (T1/2=1.3−0.3+0.6s) could be identified. For the isotope257105 we… 
43 Citations

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